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Hey y'all, I was hoping I could get confirmation from the hivemind that my AC needs more freon or if something else is wrong. The AC is not blowing cold, it gets a little cool on the passenger side but not cold like I would expect.
I suspect it has a leak in the lines running to the rear AC evaporator. I do have pressure, but it seems low, here's the reading on the gauges with the AC on full blast:
Now I know PSI doesn't directly correlate to right/wrong charge levels, but 15 seems very low. Given this temp chart I found:
I would expect it to be in the 25-35psi range (it's in the mid 60s today and according to the car's exterior thermostat) which is why I think it's just lost some of it's freon. But then why is the high side so... well, high?
I can confirm the compressor is kicking on and running, so it's not an issue with the relay like I've heard about on some earlier GXs.
The A/C system on the GX will start to get low on refrigerant around year 12 (-ish) so adding some is not unusual.
The first symptom is that one side runs a little warm.
The A/C system on the GX will start to get low on refrigerant around year 12 (-ish) so adding some is not unusual.
The first symptom is that one side runs a little warm.
Chip H.
That's good to hear, while the system overall is not as cold as it should be, I can definitely tell the passenger side is cooler than the driver's.
I'll put a can of freon into it tomorrow. Thank you for the advice!
So I got a tip from a very experienced A/C repair guy, and I myself worked on A/C for years at dealerships so tips that matter are rare. I was talking about the A/C system he saw that it had a sight glass. He said you could see that I was low still as I was passing a lot of bubbles through the sight glass, so we put some more in slowly until the sight glass was bubble free and that A/C never worked better. Just a tip that I hadn't heard, he said that the sight glasses are common on commercial systems and dual zone systems. Anyone else ever heard of that? I would of coarse stay pretty close to the pressures recommended and reasonable, my surprise came in just how much more freon we added without getting any more pressure up.
Low AC Freon?
